Scalars and vectors Flashcards

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1
Q

what is a scalar

A

a quantity which only has a magnitude

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2
Q

what is a vector

A

a quantity with a magnitude and direction

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3
Q

examples of scalars

A

distance, speed, mass

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4
Q

examples of vectors

A

displacement, velocity, weight(force), acceleration

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5
Q

how do you get a resultant vector from two vectors

A

draw the first vector. draw the second one starting at the end of the first. the resultant vector creates a triangle with them

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6
Q

what does ‘resolving a vector’ mean

A

splitting it into its component forces

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7
Q

how do you resolve a vector

A

draw it. make a right angles triangle with it as the hyp. use trigonometry or Pythagoras to find the sides (find the horizontal and vertical forces)

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8
Q

how to resolve a vector on an inclined plane

A

resolve the forces parallel and perpendicular to the slope.

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